I believe they are referring to the watering system the murderer had in his backyard. I've read a little bit about it and it sounded rather innovative.
Lol, actually yes, the quoted reply is on topic for a previous post. It was regarding the show, Mythbusters, on the discover channel.
Originally Posted by [b
The episode was trying to verify/disprove the myth that talking to your plants help them to grow. In this case, they had positive recordings play(ie, "Nice plant, good plant, grow..etc") as well as negative recordings(ie, "You're an evil plant, I hope you die") play.
They determined that the one listening to the hard-core death metal type music, actually seemed to make plants grow more, rather then the positive and complementing recordings.
But yeah...this thread has gone in so many different directions